Qartrid-qe- l



(No Model.) 4

. J. H. READ.

CARTRIDGE LOADING APP ARATUS.

. Patented May 15 1888.

No. 38Z,830

-zrportscontrolledbyadjustable pressurevalves,

JOHN H. READ, OF SANFRANCSCO, GALIFORNIA.

CARTR! -GE LOADNG APPARATUS f SPECIPICATIONforhng part of Lettere PatentNe. 382.830, daten' May 15, 1888.

` Application filed October 22, 1887.

Z'o all whom it may concerm Be it knownthat I, JOHN E. READ, of the cityand coun tyofsan Francisco, State of California, have mvented anImprovement "in Cartridge-loading Apparatus; and I hereby declare thefollowing to be' a full, clear, and exact description of the same.

My invention relates, broadly, to the classof packing-machines,andespecially to the class of machines used for packing dynamite,nitroglycerine powders or other pulverulent sub stances or material into'cartridges or cases; and my invention consistsin-an improved and novelconnection between the source of power and the phnger or ramner of themachine, said connection consisting, essentially, of a sliding cylinderconnected with the plunger or rammer, and provided with avalvecontrolled port for the entrance of the air, and relief and a,piston connected with the source of power and'working within thecylinder, whereby said c'ylinder is reciprocated withgradually-dininishing length of stroke though with 2 an equal andelastic pressure, as I shall hereinafter fully describe.

The object of my invention is to provide for applying power' in machinesof this class in such 'a way as to obtain an elastic connection betweenthe source of power and the plnnger or 'ammer of the machine; to` obtainstrokes, which,beginningat the same point, shall gradually diminish in'length as the cartridge shells or cases are filled, and, finally, toobtain strokes which shall produce equal pressure on the -powder orother material being packed. Referring to the accdmpanying drawings fora more complete expfahation of my invention, Figure 1 is a plan of myapparatus. Fig. 2 is a Vertical longitudi-nal section of the cylinder D.Fig. 3 is a detail cross-section showing the relief-ports and adjnstableggressur-valveg Although the prcsent'invention may be applied toany form of packingmachine in which a plu nger or ramme' is employed, Ihave herein illustrated-and described it in connection with theparticular plunger or rammer' illustrated and described in Patent No;299,()09, --May 20,-1884, granted to Quinan, Kimpfel 50 and Olsen.

need not describ'e or illustrate the eine;

said piston,- and its contact with the rear head 'ofithe cylihder is gradualand without jar. In

Serial No. 253.153. lNo model.)

apertures into a' corresponding -ow of shells o' cases outside of saidhopper.

A is a suitable bed-frame, upon which is supported a cylinder, D, bymeans of a guideframe, d, the ends of which are fitted to the) bed-frameand adapted to slide back and forth 'f i thereon, so that said cylinderni reciprocating movement. a, i E is a bar or connecting-rod Which joinsthe cross-head C of the parallel rods B of the m a-I' ay receive achinewith the forward end of the'cylinder;

Near the forward end of the cyli'n'dr ismade 7:0 a port which iscontrolled-by' ar" nvcrztrliy=- swinging check-valve, F, and in thisendof 'the oylindcr are made also relief-ports, which are controlled bytheoutwardly-;moving valves G, held to their places by a weight, or, as

here shown, by a spring, H, the center of which is fitted on a spindle,h, and its tension is adj usted by nnts h'. In the rear end of 'thecyl-' inder is fitted a pipe, I, provided with a controlling cock orvalve,.''. v Within the cylinderisfitted a piston, J, the

rodj 'of which extends backwardlyin a. sui&

'able slide, j', and is connected with a pitman,

j, the other end of which is connected with the wristpin kof the crankK, or. other suit'- able source of power.

The operation ,of the mach ine is as follows:

A'e the. piston nioves back within the cylinder and' comes in' contactwith its rear head, it causes the cylinder to move back a1so`, and thusthrough the eonnectingmod E to draw the series of parallel ramners orrods B back for the beginning of a stroke.

Th'e'object 'ofthepi e' I, provided "with the v controlling valve orcook i in the rear end of 95 the cyl'inder, is toallow the escape oftheair which-is being forced out from behind the pisi ton, but at the sametime-to wine-draw or inpe'de its escape, so that a cushion is providedfor this back'ward movement of the pisten it is apinder,

. and moving no farther, the con'fined and com` pressed air'is forcedout through the reliefports of vaivesG, whereupon the cylinder stops andthe stroke is completed. These valves G are of course adjusted by meansof their spring H, so that they will not yield until a given pressurehasbeen brought to bear upon them. In this way it will be'seen that anelas-. tic connection is obtained between the source of power and themachine, and that, though the strokesof the rods begin at the samepoint, theygrow shorter as' the cartridge-cases are filled, and yetauniform and equal pressure is applied at all times.

By inoreasing the pressure of the spring H on the relief-valves G thepacking of. the cartridge-shells can be r'nade very dense, and bylessening the presure the packing can' be made lig t.

. til a resstance -i net which is' suflicient to open the relief-valves,when the' strokeends. Instead of the yalVecOntrOIled exit-pipo I,

a suitable buil'er may be placed on the inside 'of the cylinder for thepisten to cushion on.

. Having thus described my invention, what I claim as new, and. desireto secure by Letters Patent, is-- 1. In a Cartridge-loading orpowder-packing apparatus, the connection between the 'plunger or rammerof' the apparatus and the source of power, which consists of a slidingcylinder connected with the plunger or rammer and a reci procatingpisten connected with the source of 'power and Operating within thecylinder to move it hack with itself in one' direction and forwardthrough the interposition of the air in front of the piston,substantially as herein described. 2. I`n a Cartridge-loading orpowdcr-packing apparatus, the pneumatio connection for applying power,consisting of a sliding cylinder, a reciprocating pisten working the'einand noving the 'cylinder with itself in one di- -rection and in theotherdirection by the com` pression of air, and a relief-port in thecylinder controlled by an ad j ustablc p'essurevalve, whercby the 'limitof notion of the cylinder in the lattcr direction is defined by rcgulating the pressure of the valve, substantially :s heroin described 3. In acartridge-londing and powder-packing apparatns, th connection betweenthe plunger or rannier f the apparatus and the sourceof power, wnichconsists of a sliding cylinderconnectcd with the plunger (ir/ramner, areciprocati'ng pisten connected with the source of power and Operatingwithin the cylinder to move it back with itself in 'one direction andforward ,by compressng the air in The cyi'rhder moves with the -rods un:

esteso v front, a rrahe-controlled in'let-port for the air in front,and`a valvecontrolied relief-port for defining the forward limit of thecylinder s movement, substantially as herein described. 4. In acartridge-loading-'or powder-packing apparatus, the connection plungeror ranner of the apparatns and the source of power, which consists of asldng cylinder connected with the plunger or ranmer, a, reciprocati ngpiston connected with the source of power and Operating within thecylinder to move it back withfi 'tsel in onedirection and forward. bycnpt, ing 'the `air in front, a valve-controlled inletlport forgftheai'- p relief-port conin front of the? piston, and" a'- between thetrolled by en adj ustable pressure-val ve fordefining the forward 'limitof' cy1inder,'snbstantially as'herein described.

5. In a cartridge-loading and powder-pack- ;ing' apparatus, theconnection between the .plungeror rammer of the apparatus and the sourceof power, consisting of a sliding cylinder connected with the 'plu'ngercoran-imer, a reci procating pisten connected with the source ot' powerand Operating within the cylinder to move it back with itself in onedirectionend forward by compressing the air in front, a vaive-controlled inlet-,port for the air in front of the pisten, a valve,and an adjustable spring for applying different prcssures to saidvalves, whereby the forward limit of the cylinder's motion is de .ned,snbstantially as he'ein described.

ing apparatus,

of power and Operating within the cylinder to draw it back with itselfin one directionand inder, against which the piston comes in con tiallyas herein described.

ing appnretus, the' connection between the plunger or ranmer source ofpower, consisting of a sliding cylinreci pro'cating pisten connectedwith the ot' power and Operating within the cylin er to draw it back byitself in one direction and to force it forward by compressing the airin tig the air in front of the pisten, controlled by an adj ustablepressure-valve for defining the forward movement of said cylindcr, and acushion in the rcar end of the cylinder, against which the pisten comesin contact when drawing said cylinder back, substantially as heroindescribed.

8. In a Cartridge-loading or powder-packing apparatus, the connectionbetween the plunger or ranmer of source of power, consisting of asliding cylinmovement og the relief-port with a controilings 6. In acartridgeloading or powder-pack-' the connection between the plnnger orrammer of the apparatus and the to'force it forward by compressng theair in; front, and a cushion in the rear end of the cyldcr-connectedwith the plungcr or rammer, a

urcc' nos rio

tact when drawing said cyinder back, substan- 7.' In aCartridge-'loading or powder-pack of the apparatus and the v front, avaive-controlled lulet-port foradmita relicf-port the epparatus and theder connected with the plunger or rammer, by a cock or valve, whereby acushion isproreciprocating piston connected with the source vided behindthe pisten, substantially as herein of power and perating within thecylinder to descrbed.- V move it back with itself in one direction and jIn witnes whereotj I have hereunto set my 5 forward by compressing theair in front, a hand. valve-controlled inlet-port foradmitting air in efront of the pisten, a relef-port controlled by JOHN READ' an adjustablepressurevalve for defining the witnesses: forward movementof thecylinder, and an exit- JAMES L. KING,

ro pipe from the rear of the cylinder controlled W. N. 'KEMPSTON

